
/******************************************************************************
 *  Copyright (C) 2000 by Robert Hubley.                                      *
 *  All rights reserved.                                                      *
 *                                                                            *
 *  This software is provided ``AS IS'' and any express or implied            *
 *  warranties, including, but not limited to, the implied warranties of      *
 *  merchantability and fitness for a particular purpose, are disclaimed.     *
 *  In no event shall the authors be liable for any direct, indirect,         *
 *  incidental, special, exemplary, or consequential damages (including, but  *
 *  not limited to, procurement of substitute goods or services; loss of use, *
 *  data, or profits; or business interruption) however caused and on any     *
 *  theory of liability, whether in contract, strict liability, or tort       *
 *  (including negligence or otherwise) arising in any way out of the use of  *
 *  this software, even if advised of the possibility of such damage.         *
 *                                                                            *
 ******************************************************************************

 MD5.H - header file for MD5C.C
 
   Port to Win32 DLL by Robert Hubley 1/5/2000

   Original Copyright:

  Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
  rights reserved.

  License to copy and use this software is granted provided that it
  is identified as the "RSA Data Security, Inc. MD5 Message-Digest
  Algorithm" in all material mentioning or referencing this software
  or this function.

  License is also granted to make and use derivative works provided
  that such works are identified as "derived from the RSA Data
  Security, Inc. MD5 Message-Digest Algorithm" in all material
  mentioning or referencing the derived work.
  
  RSA Data Security, Inc. makes no representations concerning either
  the merchantability of this software or the suitability of this
  software for any particular purpose. It is provided "as is"
  without express or implied warranty of any kind.

  These notices must be retained in any copies of any part of this
  documentation and/or software.
*/
/******************************************************************************
 *  Copyright (C) 2000 by Robert Hubley.                                      *
 *  All rights reserved.                                                      *
 *                                                                            *
 *  This software is provided ``AS IS'' and any express or implied            *
 *  warranties, including, but not limited to, the implied warranties of      *
 *  merchantability and fitness for a particular purpose, are disclaimed.     *
 *  In no event shall the authors be liable for any direct, indirect,         *
 *  incidental, special, exemplary, or consequential damages (including, but  *
 *  not limited to, procurement of substitute goods or services; loss of use, *
 *  data, or profits; or business interruption) however caused and on any     *
 *  theory of liability, whether in contract, strict liability, or tort       *
 *  (including negligence or otherwise) arising in any way out of the use of  *
 *  this software, even if advised of the possibility of such damage.         *
 *                                                                            *
 ******************************************************************************
*/

/******************************************************************************
 *   2002-4-18 Modified by Liguangyi.               *
 *   struct MD5_CTX ==> class MD5_CTX.                  *
 *   Take off the Globals Functions                                           *
 ******************************************************************************
*/
#include <stdio.h>
#include <fstream>
#ifndef _LGY_MD5_H
#define _LGY_MD5_H
#define MD5_BUFF_SIZE 1024
/* MD5 Class. */
namespace MD5 {


class MD5_CTX {
public:
 MD5_CTX();
 virtual ~MD5_CTX();
 void MD5Update ( unsigned char *input, unsigned int inputLen);
 void MD5Final (unsigned char digest[16]);

private:
 unsigned long int state[4];     /* state (ABCD) */
 unsigned long int count[2];     /* number of bits, modulo 2^64 (lsb first) */
 unsigned char buffer[64];       /* input buffer */
 unsigned char PADDING[64];  /* What? */

private:
 void MD5Init ();
 void MD5Transform (unsigned long int state[4], unsigned char block[64]);
 void MD5_memcpy (unsigned char* output, unsigned char* input,unsigned int len);
 void Encode (unsigned char *output, unsigned long int *input,unsigned int len);
 void Decode (unsigned long int *output, unsigned char *input, unsigned int len);
 void MD5_memset (unsigned char* output,int value,unsigned int len);
};


long FileToMd5(const char *file,/*OUT*/ char *buff);
long DataToMd5(unsigned char *data,const int dataSize,/*OUT*/ char *buff);

}//namespace MD5 
#endif

